6
            
            
              2005
            
            
              2005
            
            
              1921-27 Opt. 'CHINA' 2nd issue 1c to $2 complete set in blocks of 4, except $1 and $2 in horizontal pairs.  Each
            
            
              multiple contains the constant plate flaw known as "Cigarette" variety. Additionally 50cts from 1st issue in hozirontal
            
            
              pair with the same variety (illustrated on page 30 of Perrin's book). Hinged and toned, but still extremely rare to
            
            
              assemble as a complete set. Yang BP11a, BP17-27. Photo
            
            
              HK$ 5,000 - 6,000